Here at Cryos we focus very much on security since we are dealing with sensitive data. Therefore we have encrypted our API keys that are embeded in Donor API and Pregnancy API.

Also all users needs a subscription key to request data - and the only way to get a subscription key is for the Cryos API team to approve that request.
we need to know which APIs you need access to, and from there you will be granted access with a subscription key.
We have also implemented rate limiting to prevent overflow of request. More security will be developed in the future when the API platform is expanding - and there will be made newsletters explaining new features